Auger or boring device



March 29, 1932. c. F. HOTCHKISS, JR 1,351,766

AUGER OR BORING DEVICE Filed Augj l6 INVENTOR.

Cmawcz 5 17076770055);

ATT NEY 7 Patented Mar. 29, 1932- [PATENT OFFICE 1 UNITED STATES G'LA RENCE I. HOTOHKISS, 33., O1 BINGH AKTON, NEW YORK, ABSIGNOB TO STOW MANUFACTURING COMPANY, 01 BINGHAM'I'ON, NEW YORK, A CORPORATION 01 NEW YORK AUGEB B BORING DEVICE .Application filed Aug'lllt 18, 1980. Serial No. 475,772.

in the provision of means for easily and readily boring through stoppages in pipes and the .p

like, thus opening the-normal passage therethrough for the usual drainage.

One feature of m invention lies in providing an extensible evice by means of which a considerable length of piping can be reached and acted upon by the auger.

Another object of my invention lies in the provision of a curved piece or housing for a portion of the auger permitting its use in basins, catchpipes and other places dilficult to reach with a straight instrument.

Still another object and advantage of my invention lies in the provision of rendering 7 my boring device collapsible whereby it requires but little space for packing and transportation, but which when it is desired to use the same may be readily extended to fit the requirement of the particular operation demanding its use.

Other objects and advantages in details of construction and arrangement of parts will be apparent as the description proceeds, reference now being had to the figures of the accompanying drawings, forming a part of this application and whereinlike reference numerals indicate like parts.

In the drawings I Figure 1 is a side view of my improved auger, certain parts being shown in section for clearness.

Figure 2 is a. view of-the auger in its ex tended position.

Figure 3 is a detail partly sectional View of the flexible wire shaft or cable forming a part of the boring device.

The reference character 1 refers to a sheath or housing formed preferably of hollow metal tubing provided at its upper end with a shouldered or crimped portion 2 and curved at its lower end as at 1a.

This sheath member 1 is preferably of fair-' 1y rigid metal tube stock and adapted to pass through the same for a portion of its length is a fairly rigid rod or heavy wire 3, the uper outer end of which is bent as at 4 and provided with a finger piece 5 to provide a handle by means of which the rod 3 may be rotated within the sheath 1. The lower end of the rod 3 terminates at a point just above where the sheath 1 is bent to form the portion 1a and secured to this lower end of the rod- 3, is one end of a flexible cable indicated at 6. This cable 6 is adapted, when the rod 3 is pushed downwardly within the housing or sheath 1, to extend beyond the outer curved end .ofthe housing, and" enter the pipe or drain, or other place where a stoppage has occurred and through which it is desired to bore an opening.

This flexible cable 6 is preferably formed in the manner shown in Figure 3 and consists of an inner core 7 of flexible wire about which and inengagement with which is spirally coiled a wire sheath or covering 8 over'which is coiled a second sheath or covering 9, wound spirally in the opposite direction from the sheath 8. Two additional spirally wound wire sheaths 10 and 11 respectively are also wound upon the inner sheaths as shown clearly in Figure 3. This forms a four-ply winding or covering for the inner core 7 which makes a very strong and durable solid flexible shaft 6 which is sufiiciently bendable to follow the contour of waste pipes, drains, etc., but which will not readily kink or break. It will be understood, of course,

that the particular size of the inner wire core flexible shaft 6 is a boring head or tool 12 consistin in several coils of heavy wire, the outer coi ed end of which is preferably smaller than the rear end thereof, whereby the device acts as a borin tool, serving u on rotation by means of t 1e handle 5 on t e rod 3, to screw or bore its way through the stoppages into which it ma come in contact in use.

The inner en of the flexible shaft 6 is suitably secured to the lower end of the rod rotatable ro extending theret rough and having a handle at one end, a flexible shaft se-.

cured to the op osite end of said rod within said sheath, an a boring member secured to the outer end of said shaft, a telescoping extension for said sheath, and means on said rod, said extension and said sheath for limiting the longitudinal movement of said extension.

In testimorlliy whereof, I afiix my si nature. CLAR NCE F, HOTCHKIS JR.

3, and is preferably provided with a shoulder 13 for a purpose to be described.

Obviously from the foregoing construction, the flexible shaft 6 may be drawn into the sheath 1 by pulling outwardly on the rod 3, or it may be extended out of the lower bent end of the sheath by pushing inwardly on said rod, the circumstances of use and the conditions under which the device is operated dictating the proper position of the flexible shaft 6. a

In order that the rigid portion 1 of the device may be extended in order to more properly permit the support and rotation of the boring tool, I have provided slidably within the outer end of the sheath 1, a tube 14 proyided at its outer end with'flared portions 15 to prevent the tube passing completely downwardly into the sheath 1. The rod 3. of course. passes through the tube 14, and this tube is provided at its lower end with a flared portion 16 adapted, when the tube is pulled outwardly, to enga e with Y the indented or crim'ned portion 17 adiacent the outer end of the sheath 1, whereby to limit the outer movement of the tube 14. The shoulder 13 at the lower end of the rod 3 where such rod engages with the inner end of the shaft 6. is adapted to engage a crimped portion 14a in the tube 14 when the rod 3 is pulled upwardly whereby to bring the tube 14 outwardly to the position shown in Fig- I ure 2. which shows the device extended and with the flexible shaft 6 enclosed within the sheath 1, and whereby to limit the outer movement of the rod 3. In this position. the .device is in the form of a relatively rigid holder and as the shaft 6 is pushed outwardly from the lower end thereof, it follows the contour of thev drain or pipe within which the" work is being done.

Of course. changes may be made in details of construction and arrangement of parts without departing from the spirit and scope of my invention. I do "not limit myself therefore, to the exact structure herein shown or described, other than by the appended claims.

I claim:

1. A boring auger comprising a sheath, a rotatable shaft extending therethrough, a boring member on said shaft, and means in said sheath for extending the same.

2. A boring auger comprising a sheath, a rotatable shaft extending therethrough, a boring member on said shaft, and a telescop mg extension for said sheath within the same. 

